Applied analysis of geocooling technology for a residential building

Belliardi, Marco (2018) Applied analysis of geocooling technology for a residential building. UNSPECIFIED. In: BRENET 20° Status-Seminar, 5-6 September 2018, ETH-Zurich, Switzerland.

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This article presents the results of the project “Geocooling potential of a boreholes heat exchanger field for a residential building in Lugano” that is funded by the Swiss Federal Office of Energy (P&D fund) and the Canton Ticino (FER fund). The project aims at demonstrating the technical feasibility and the energy potential of a boreholes heat exchangers field installed in a residential building with 46 apartments. The power plant supplies winter heating demand by using heat pumps, and cooling demand during the summer period by using the geocooling system. To achieve this goal, a certain number of sensors has been installed in the technical room in order to monitor temperature, and thermal and electrical energy flows. In addition, a temperature and humidity sensor has been installed in one of the apartments of the building. The purpose of this data-analysis, which has been done approximately in the middle of the monitoring project, was to discover and establish possible weaknesses of the thermal system, and therefore to propose improvements and optimizations. The first outcomes and results refer to the 2016-2017 seasons. The monitoring of the thermal power plant started in June 2016 and it’s scheduled to finish in 2019. During the 2018 summer season, begins the implementation for the optimization of the system with the professionals involved.

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